In which two scenarios would you define account rules based on value sets?

When attempting to open costing periods, your customer is receiving the following error:
Error: You do not have the required permission. You can request that your help desk change your security settings.
What configuration needs to be done so your customer will be able to open the Cost Accounting period?

If the accounting method does not have an assigned chart of accounts (COA), which option is valid?

An invoice is created in a foreign currency. The invoice is not paid until several weeks later. By then, the currency conversion rate has changed.
How do you get the journal line rule to calculate the gain or loss?

Trade events for physical shipments are interfaced into the Cost Accounting subledger from which module?